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戴尔CRT显示器雷击后的故障

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1#
发表于 2009-6-20 07:35:29 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式 �

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原来电脑主机显卡和显示器一起坏的,显示器要是不插显卡提示没有信号连接,光栅等都正常但是插上主机后,行电路就保护了。不知道是不是CPU坏了,尾板的视放处理LM1279N已经更换还是原来故障。

2#
发表于 2009-6-20 08:14:02 | 只看该作者 �
检查下信号线到CPU之间有不少稳压管,看一下坏没坏。尤其是检查一下行场同步信号这两条线的对地稳压管。

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发表于 2009-6-23 14:08:52 | 只看该作者 �

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